Roll mounting



Nov. 18, 1941. c. R. KADDELAND ROLL MOUNTING Filed Jan. 5, 1938 5Sheets-Sheet l INVENTOR. EHRISTEN R. KADDELAN B. BY k5 ATTORNEYS Nov.18, 1941.

C. R. KADDELAND ROLL MOUNTING Filed Jan.

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ROLL MOUNTING Filed Jan. 5, 1938 5 Sheets-Sheetfi;

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ROLL MOUNTING 'Filed Jan. 5, 1938 5 Sheets-Sheet 4 as INVENTOR. Ell-IRISTEN RKADDELAND.

I Nov. 18, 1941.

c. R. KADDELAND 2 ,263,303

ROLL MOUNTING Filed Jan. 5, 1938 5 Sheets-Sheet 5 I INVENTOR VBHRISTENR.KADDELAND.

Y f/wwm a 7m a w my ATTORNEYJ Patented Nov. 18, 1941 2,263,303 ROLLMOUNTING Christen R. Kaddeland, Shelton, Conn., assignor toHarris-Seybold-Potter Company, Cleveland, Ohio, a corporation ofDelaware Application January 5, 1938, Serial No. 183,462

1 Claim.

printing press, in which the web of paper is first cut into sheets andthe sheets are then fed into the press where they are printed anddelivered onto a pile. Obviously, however, the invention is applicableto other types of machines.

One of the objects of the invention is to provide a compact, accessible,and efficient multiple roll mounting capable of accommodating a rollwhich is large in diameter in comparison to the siZe of the mounting.

It is a further object to provide a roll mounting particularly adaptedto receive a fresh roll after the roll which is being operated upon hasbeen reduced in size to a considerable extent.

Another object is to provide a construction for a roll mounting thatwill be durable, convenient, safe, and eflicient in operation.

A further object is to provide a roll mounting in which the rollsupporting members may be adjusted for different widths of webconveniently and accurately.

A still further object is to provide a construction which will permitthe convenient and accurate adjustment of the position of the weblaterally in relation to the machine which is to operate upon it.

Fig. 1 is a diagrammatic elevational view of a multi-color printingpress to which this invention may be applied.

Fig. 2 is an enlarged view of the multiple roll mounting taken insection through the center of the machine as indicated by the line 2-2of Fig. 3.

Fig. 3 is an end View of the roll mounting.

Fig. 4 is a plan View taken substantially on the line 44 of Fig. 2.

Fig. 5 is a side view corresponding to Fig. 2 but with a fresh rollshown in the act of being inserted while the machine continues tooperate upon the previous roll.

Fig. 6 is a diagrammatic perspective view of one end of the roll frame.

Fig. '7 is a detail sectional view of a fragment of the roll frame,taken on the line 1-1 of Fig. 9.

Fig. 8 is a detail sectional view on the line 38 of Fig. '7.

Fig. 9 is a fragmental plan view, partly in section on the line 39 ofFig. 7, showing a portion of a roll spider and means for adjusting thesame.

Fig. 10 is a central sectional view of a retractible spindle which maybe employed in connection with the invention, and

Fig. 11 is a detail sectional view of the same, taken substantially onthe line I l-ll of Fig. 10.

Referring to Fig. 1, l is a foundation or base arranged to support theframework 2 of a web feeding and sheet cut-off mechanism and amulti-color printing press, 3, arranged to print on the cut off sheetsand deliver them by means of the endless conveyor 4 to a pile offinished product 5. A roll of paper 6 is supported by a carrierindicated generally as I, the roll being mounted to turn freely uponspindles mounted in the carrier.

The web 9 is led from the roll 3 over a guide roller l0, around webtensioning rollers II and I2, around the web driving rollers l3 and i4and their associated pressure rollers l5 and I6, thence between therotary cutting cylinders l1 and I8 Where the web is cut into sheets ofthe desired length. The out sheets are then carried between adjacentcourses of endless tapes I9 and 20, to the feed rollers 2| and 22, whichin turn feed the sheets to the impression cylinder 23 of the printingpress where they are printed in one or a plurality of colors anddelivered onto the finished pile.

The mechanism may be driven in any usual manner. In the example shown,the press drive shaft 24, through bevel gears 25 and 26, drives thevertical shaft 21 which furnishes the motive power for the web feedingand sheet cut-01f mechanism during its normal operation. The verticalshaft 21 through bevel gear 28 drives the cutting cylinder I! which inturn drives intermediate gears 29 and 30, 3|, 32 and 33, the last ofwhich drives the rollers l3 and M which serve to advance the web ofpaper to the cutting cylinders. Intermediate gear 3| drives shaft 34which through an electrically controlled differential gear unit 35drives the output shaft 36, which through bevel gears actuates the beltdriving roll 31.

Mounted on roller 31, idler roller 38 and pulleys 39 are a plurality ofleather belts 40 which bear against the surface of the paper roll 6.Through the gearing indicated these belts are driven with a speedcorresponding approximately to the desired speed of the web forreleasing the web from the roll. The speed of the belts 40 however isvariable to cause increase or decrease in the rate the web is releasedfrom the roll to thereby maintain uniform tension in the web, 9. Theactuation and control of the web is shown It should also be noted forthe sake of cleardiameter is, therefore, materially reduced and thewhole mechanism made more compact with a resulting saving in floor spaceand height.

The construction and manner of operation of the retractible spindles 55and 56 are shown in Figs. 10 and 11. The portion of the spindle which isinserted in the end of the hollow core of the paper roll comprises ahollow member 51 with a tapered outer wall and a collar 58, which arearranged to be clamped to the outer race of jv a combination radial andthrust anti-friction ness that the belts 46, which as previously de-"scribed bear against the surface of the roll 6 for the purpose ofmaintaining uniform tension in the web 9, are held against the roll withthe proper pressure by means of the weights I26, there being a separateweight for each belt. Each weight is formed in a U shape and is providedwith an axle 2| which supports the pulley 39.

A bracket I22 which is clamped to a cross bar l23in any desired positionis provided with a slide bar I24 which engages a groove I25 in each sideof the weight thus allowing the weight to act under gravity to lower thepulley 39 as far as permitted by the length of the belt 46.

tatable therewith is an elongated support member 46 formed with cappedends 41, which together constitute one end member of a revoluble frame.On the other side of the machine and keyed to trunnion is a similarelongated member..48 constituting the other end member of the frame. Thecaps 41 of the members 46 and 48 are arranged to hold in fixed relationcross rods 49 and 50 which constitute the remaining members of therevoluble frame above referred to, which is rigid, rectangular in form,and is carried in the main frame 2 upon the trunnions 44 and 45. Animportant characteristic of such a frame is the absence of a centralconnecting member between the end members of the frame. Because of thischaracteristic the frame will be referred to hereinafter as a hollowframe.

Each of the cross rods 49 and 50 is provided with a series of rack teethout in its side for a purpose to be explained later. Upon the cross rods49 and 50 are adjustably mounted two diamond shaped roll supportingspiders 5| and 52. Spider 52 carries at two of its points a pair ofrotatable spindles 53 and 54, while spider 5| similarly carries anotherpair of spindles 55 and 56, whose construction and operation will bedescribed later in connection with Fig. 10.

Upon the pair of spindles 53, 55 or 54, 56 as the case may be, the rollof paper 6 is mounted, the spindles being inserted into the ends of thehollow core provided as a center about which the web of paper is rolled.It will be noted, as particularly shown in Fig. 2, that the constructionjust described permits the insertion of a paper roll whose radius isgreater than the radial distance from the center of rotation of thecarrier frame to the center of rotation of the paper roll. Thus whilepaper is still being fed from a roll whose size has been reduced anecessary amount a new full size roll may be placed in the other part ofthe carriage in position ready for being turned into operative positionas soon as the previous roll has been entirely exhausted.

The size of carriage required for a, roll of given bearing 59, the innerrace of which is mounted on the reduced end of a non-rotatable stud 60which is held in the collar 6| by means of the set screw 62. The collar6| is slidably keyed in the frame member 5| so that the spindle may beretracted from or inserted in the paper roll core. The collar 6| alsohas inserted in it the nut 63 held in place by set screw 64 and having athreaded hole which a screw 65 engages. The screw 65 has a shoulderedportion 66 which engages the inner portion of a cover plate 61 which isbolted to the spider 5| around the cylindrical opening in which thecollar 6| is mounted. To the outer end of screw 65 is keyed a hand wheel68, the hub of which engages the outer face of the cover plate 61. Thuswhen the wheel 68 is turned the screw 65 turns but may not movelengthwise. The threads in the nut 63 however cause the collar 6| andthe spindle member 51 to move in and out in relation to the spider 5|.

A ratchet 69 which is fixed to the hand wheel 68 is engaged by a pawl 10which is urged into contact with ratchet 69 by the spring 1|, both thepawl and spring being mounted on a pawl carrier 12 which is keyed to theouter portion of the cover plate 61.

It will be seen that these parts may be designed so that turning thehand wheel 68 in the clockwise direction will cause the spindle 51 tomove to the right in Fig. 10 and that the pawl 15 will ride freely overthe teeth of the ratchet 69. By manually raising the pawl 10 against thespring 1| to disengage the pawl from the ratchet the hand wheel may bemoved in a counterclockwise direction and the spindle 51 moved to theleft in Fig. 10. It will be seen that the construction just described isconvenient in operation and avoids any possibility of the spindleaccidentally being retracted while supporting a paper r0 In order thatthe frame or carriage may accommodate rolls of different widths thespiders 5| and 52 are movably mounted on the cross rods 49 and 50 aspreviously mentioned. These spiders are maintained in true parallelismin different positions and may be moved readily from one position toanother. To this end they are provided with means on cross rods 49 and50 cooperating with the rack teeth 13 so that both ends of each of thespiders 5| and 52 will be moved simultaneously. This means in eachinstance consists of a shaft 14 the opposite ends of which are squared,as indicated at 15, for receiving a wrench. Inwardly of the squaredportions gear teeth 16 are out in the shaft. In order that the shaft 14may not slide out of position it is provided with a slot 11 which isengaged by the end of a set screw 18 (Fig. 8) carried by the web 19 ofthe spider 5| or 52 as the case may be. The shaft 14 is mounted at itstwo ends in the spider. Upon rotation of the shaft the engagement ofgear teeth 16 with the rack teeth 13 in the stationary cross rods 49 and56 will cause the spider to move along these cross rods smoothly and inparallelism with itself. At any desired position of spiders 5I and 52the screws 89 which hold the caps 99 of the spiders in place may betightened so that the cross shafts 49 and 59 are firmly clamped.

Referring again to Fig. 3, the trunnions 44 and 45 are provided withendwise clearance so that the entire framework consisting of thesetrunnions, supports 46 and 48, and cross rods 49 and 59 as well as themechanism carried by these cross rods may be accurately adjustedcrosswise of the machine for the purpose of placing the web of materialin an accurate position with respect to the machine operating upon it.For this purpose the trunnion 44 is provided with a recess 99 for thepurpose of receiving an anti-friction bearing 9| mounted on the end of ascrew 92, the outer race of this bearing being held in fixed relation tothe trunnion 44 by means of a retaining plate 93. The threads on thisscrew 92 engage threads in a plate 94 which is bolted to a combinationgear cover and bracket 95 which in turn is bolted to the main frame 2 bythe screws 96. Keyed to the outer end of the screw 92 is hand wheel 9'!and between the hand wheel and the plate 94 and on the screw 92 is alock nut 98 which is provided with a handle for convenience. It will beseen that. when the lock nut 98 is loosened and the hand wheel 91 isturned the screw 92 travels in or out of the plate 94 and carries withit the trunnion 44, thus moving the entire paper roll frame laterally ofthe machine.

For the purpose of placing a fresh roll in operative position when aprevious roll has been partly or fully exhausted, mechanism is providedfor revolving the entire paper roll frame into the desired position andholding it there without further forward or backward movement. Keyed tothe outer end of each of the trunnions 44 and 45 are gears I9I whichengage pinions I92. Each of these pinions is mounted on one of a pair ofduplicate shafts I93 (see Fig. 4) which carry worm wheels I94 thatengage worms I95 on duplicate shafts I96 which are joined by couplings I9'! to duplicate shafts I98 on opposite sides of the machine. The shaftsI98 are equipped with bevel gears I99 which mesh with other bevel gearsI I9 which are mounted at the two ends of a cross shaft III. Keyed tothe cross shaft III is a pulley H2 which is driven through a belt II3 bya motor II4 which may be started and stopped by a manually operatedswitch.

By means of the mechanism just described it will be seen that a newpaper roll may be brought into operative position without any tendencyto twist the roll frame as would be the case if this frame were revolvedfrom one end only. It is also to be noted that the worms I95 inconjunction with the worm wheels I94 act as locks to hold the paper rollin any desired position.

The operation of the mechanism for the insertion of a fresh roll ofpaper is as follows: When the roll 6 upon which the machine is operatinghas become exhausted sufiiciently to permit the insertion of a new fullsized roll the entire roll frame I, which during operation of themachine may occupy the position shown in Fig. 2, is rotated by motor II4about its supportin trunnions 44 and 45 into the full line position ofFig. 5 or any other convenient position for the insertion of a freshroll.

The fresh roll I36 which is carried on a truck I3I is brought intoposition between the spindles 54, 56. Spindle 56 has previously beenretracted sufiiciently to permit the roll to pass between the spindles.The truck may then be moved slightly toward the right, as the machine isviewed in Fig. 3, to carry the hollow core of the roll into closeengagement with spindle 54, after which spindle 56 is again movedinwardly by hand wheel 68 until the latter spindle also closely engagesthe core.

The roll frame I is then revolved sufliciently to raise the roll I39 offthe truck I3I so that the latter may be removed. The dotted lines inFig. 5 show the frame rotated slightly for this purpose. After theremoval of the truck I3I the frame may be restored to any desiredoperating position for the completion of the operation of the machineupon roll 6.

As is evident from the construction all the operations involved inplacing a fresh roll of paper between the spindles 54, 56 may beaccomplished while the machine is in operation and the web of paper isbeing withdrawn from the roll 6.

Having thus described my invention, I claim:

A roll carrier adapted to be revolubly mounted in a supportingstructure, comprising end members, aligned trunnions fixed to said endmembers having bearing in said supporting structure, a pair of spacedlongitudinal members connecting said end members on opposite sides ofsaid trunnions to form a rigid, hollow frame revoluble about saidtrunnions as a center, and roll supporting means for two rolls carriedby said frame comprising two pairs of spindles, said longitudinalmembers being spaced apart a distance at least as great as the spacingof said pairs of spindles.

CHRISTEN R. KADDELAND.

